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-(Q8o-Cb~ <br />~~~~CENGINEERING <br />~ECE~~E® April 6, 2004 <br />APR ~ 3 20©4 <br />pivision of Mintcats and Geolo9Y <br />61 I Skyline Road - Laramie, WY 62070 - (307) 742-0031 <br />FAX (307) 721-2913 - E-mail: infolar(o)wwcengineering.com <br />CDPS Permit CO-0032638 <br />Mr. Tom Kaldenbach <br />Colorado Division of Minerals and Geology <br />1313 Sherman Street <br />Room 215 <br />Denver-Colorado 80203-2273 <br />RE: Edna Mine, March 2004 CPDS and First Quarter WET Test Results <br />Dear Mr. Kaldenbach: <br />Enclosed are the Edna Mine's (Permit #CO-0032638) CPDS reporting results for the <br />above referenced monitoring period. During the month of March 2004, DMP 004 and DMP 007 <br />did not exceed any compliance criteria. ' <br />DMP 007 passed the chronic WET tests for the first quarter of 2004. DMP 004 failed the <br />Pimephales promelas but passed the Ceriodaphnia dubia chronic Whole Effluent Toxicity <br />(WET) test. P&M has initiated accelerated WET testing of DMP 004 in compliance with the <br />CDPS Permit. This letter is written notification of the WET test failure and that accelerated <br />WET testing will be performed. <br />Please contact me at {307) 742-0031 with any questions or comments you have regarding <br />this matter. <br />SL:gh <br />Enclosures <br />File: 99-144 <br />Project Engineer <br />